All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger. {C}
First of all, we congratulate you for the blessing that Allah granted you, which is embracing Islam; this is indeed the greatest blessing that He has bestowed upon you.
We ask Allah to improve the relationship between you and your husband, and make you live with him in happiness in this worldly life, and to gather you with him on the Day of Resurrection in Paradise, the eternal bliss and everlasting happiness.
You did not ask us a specific question, but in general, we would like to say to you that your husband is Islamically obliged to have good marital relations with you. He should be kind to you, affectionate and treat you in a good manner. All these meanings are included in the Saying of Allah (which means): {And live with them in kindness.} [Quran 4:19]
He is wrong in describing your jealousy or your desire to play with him as childish.
The wife’s jealousy proves that she loves her husband. In addition, such jealousy is natural in women and some wives of the Prophet were jealous and he did not forbid them from that or reacted aggressively towards them because of their jealousy.
Your husband should follow the example of the Prophet as he is the best leading example. ‘Aa’ishah narrated that she was on a journey along with the Prophet ; she said: “I had a race with him (the Prophet) and I outstripped him on my feet (running). When I became fleshy (gained weight), (again) I had a race with him (on another journey) and he outstripped me. He said: “This (one) is for that outstripping.” [Abu Daawood]
The Prophet also used to say: "The best amongst you, are those who are best (in treatment) to their wives, and I am the best to my wives." [At-Tirmithi and Ibn Maajah]
Therefore, you should endeavor to advise him, in light of what we have said, in addition to being patient with him. Supplicate Allah to rectify him, as the hearts of the slaves are in the Hands of the Lord of the Worlds and He changes them as He wishes.
For more benefit on the virtues of supplication and the most suitable times when supplications are most likely answered, please refer to Fatwa 92363.
Allah knows best.